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17	17	(% border="1" style="background-color:#f2f2f2; width:891.222px" %)
18		-|=(% colspan="3" style="width: 888px;background-color:#CCD4DE" %)Dragino STM32 base hardware Upgrade Methods
	18	+|=(% colspan="3" style="width: 888px;background-color:#D9E2F3;color:#0070C0" %)Dragino STM32 base hardware Upgrade Methods
19	19	|(% style="background-color:#e8ebf0; width:284px" %)**Model**|(% style="background-color:#e8ebf0; width:409px" %)**UART Connection**|(% style="background-color:#e8ebf0; width:204px" %)**ST-Link Connection**
20	20	|(% style="width:284px" %)[[LSN50 v1>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/128-lsn50.html]], [[LoRa ST>>url:http://www.dragino.com/products/lora/item/127-lora-st.html]],|(% style="width:409px" %)Hardware Connect Photo|(% style="width:204px" %)Hardware Connect Photo
21	21	|(% style="width:284px" %)[[LGT92>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/142-lgt-92.html]], [[LBT1>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/165-lbt1.html]]|(% style="width:409px" %)×|(% style="width:204px" %)[[Hardware Connect Photo>>||anchor="H4.1.2LGT922FLBT1ST-Linkv2Connection"]]
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34	34	|(% style="width:284px" %)[[LTC2>>url:https://www.dragino.com/products/temperature-humidity-sensor/item/170-ltc2.html]]|(% style="width:409px" %)×|(% style="width:204px" %)[[Hardware Connect Photo>>||anchor="H4.1.5LTC2"]]
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37		-
38	38	= 3. UART Upgrade Guide =
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40	40	== 3.1 Hardware Connection ==
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72	72	* **Connect JP2 jumper (Yellow one), so device is power on.**
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75		-
76	76	== 3.2 Upgrade Steps ==
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138	138	1. We see a case the FT232 USB TTL adapter has reliability issue with the PC USB chipset(Intel). In this case, even above, it still has serious reliability issue for uploading. If this happen, change a PC or change a USB to TTL adapter will solve.
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141		-
142	142	== 3.4 Flash Loader ~-~- Unable to Load data from this file ==
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187	187	* **ST-LINK v2 SWDIO  <~-~->  Dupont Cable white pin**
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190		-
191	191	=== 4.1.3 LAQ4 ST-Link v2 Connection ===
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213	213	* **ST-LINK (VDD 3.3v,pin19)  <~-~->  ST-LINK (TVCC ,pin1) a wire to connect two pins of ST-Link together.**
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216		-
217	217	=== 4.1.5 LTC2 ===
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231	231	* **ST-LINK (VDD 3.3v,pin19)  <~-~->  ST-LINK (TVCC ,pin1) a wire to connect two pins of ST-Link together.**
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234		-
235	235	= 4.2. Firmware upgrade using STM32 Cubeprogramer =
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